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Full Discussion: Array compare bash script
Top Forums Shell Programming and Scripting Array compare bash script Post 303000108 by MadeInGermany on Tuesday 4th of July 2017 11:17:41 AM
Old 07-04-2017
IFS includes a newline, so you do not need xargs to convert newline to a space character.
My script sample needs a sorted input.
For example
Code:
ARRAY2=($(df -Pk | awk '$6~/^[/]/{print$6}' | sort)) # df
ARRAY=($(awk '/^[^#]/ && $2~/[/]/ && $3!~/devpts|sysfs|proc/{print $2}' /etc/fstab | sort)) # fstab

BTW df does unneeded stat() and statfs(), a mount -v would be less overhead.

---------- Post updated at 10:17 ---------- Previous update was at 10:14 ----------

Please avoid unneeded cat! If you want to have /etc/fstab first in the line then do
Code:
ARRAY=($( </etc/fstab awk '/^[^#]/ && $2~/[/]/ && $3!~/devpts|sysfs|proc/{print $2}' | sort)) # fstab

This User Gave Thanks to MadeInGermany For This Post:
 

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SYSTEMD-REMOUNT-FS.SERVICE(8)				    systemd-remount-fs.service				     SYSTEMD-REMOUNT-FS.SERVICE(8)

NAME
systemd-remount-fs.service, systemd-remount-fs - Remount root and kernel file systems SYNOPSIS
systemd-remount-fs.service /lib/systemd/systemd-remount-fs DESCRIPTION
systemd-remount-fs.service is an early boot service that applies mount options listed in fstab(5) to the root file system, the /usr file system, and the kernel API file systems. This is required so that the mount options of these file systems -- which are pre-mounted by the kernel, the initial RAM disk, container environments or system manager code -- are updated to those listed in /etc/fstab. This service ignores normal file systems and only changes the root file system (i.e. /), /usr and the virtual kernel API file systems such as /proc, /sys or /dev. This service executes no operation if /etc/fstab does not exist or lists no entries for the mentioned file systems. For a longer discussion of kernel API file systems see API File Systems[1]. SEE ALSO
systemd(1), fstab(5), mount(8) NOTES
1. API File Systems https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems systemd 237 SYSTEMD-REMOUNT-FS.SERVICE(8)
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